Naomi Osaka and Madison Keys, trying to move one step closer to a possible championship matchup against Serena Williams, will have to beat their opponents and the heat on Wednesday in the quarterfinals. On the men’s side, Novak Djokovic faces John Millman, who shocked Roger Federer in an upset on Monday.
• Refresh here for live results and analysis from Day 9 of the 2018 U.S. Open
• Live scores and schedule: Men | Women
• Read our coverage of Tuesday’s quarterfinals.
